1 /* vi: set sw=4 ts=4: */
3 * Mini run-parts implementation for busybox
5 * Copyright (C) 2007 Bernhard Fischer
7 * Based on a older version that was in busybox which was 1k big..
8 * Copyright (C) 2001 by Emanuele Aina <emanuele.aina@tiscali.it>
10 * Based on the Debian run-parts program, version 1.15
11 * Copyright (C) 1996 Jeff Noxon <jeff@router.patch.net>,
12 * Copyright (C) 1996-1999 Guy Maor <maor@debian.org>
15 * Licensed under GPL v2 or later, see file LICENSE in this tarball for details.
18 /* This is my first attempt to write a program in C (well, this is my first
19 * attempt to write a program! :-) . */
21 /* This piece of code is heavily based on the original version of run-parts,
22 * taken from debian-utils. I've only removed the long options and a the
23 * report mode. As the original run-parts support only long options, I've
24 * broken compatibility because the BusyBox policy doesn't allow them.
25 * The supported options are:
26 * -t test. Print the name of the files to be executed, without
28 * -a ARG argument. Pass ARG as an argument the program executed. It can
29 * be repeated to pass multiple arguments.
30 * -u MASK umask. Set the umask of the program executed to MASK.
37 #if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS
38 static const struct option runparts_long_options[] = {
39 { "arg", 1, NULL, 'a' },
40 { "umask", 1, NULL, 'u' },
41 { "test", 0, NULL, 't' },
42 #if ENABLE_FEATURE_RUN_PARTS_FANCY
43 { "list", 0, NULL, 'l' },
44 //XXX:TODO: { "reverse", 0, NULL, 'r' },
45 //XXX:TODO: { "verbose", 0, NULL, 'v' },
53 char *cmd[10]; /* merely arbitrary arg count */
55 #define G (*(struct globals*)&bb_common_bufsiz1)
58 /* True or false? Is this a valid filename (upper/lower alpha, digits,
59 * underscores, and hyphens only?)
61 static bool invalid_name(const char *c)
64 if (!isalnum(*c) && (*c != '_') && (*c != '-' && (*c != '/'))) {
71 #define RUN_PARTS_OPT_a (1<<0)
72 #define RUN_PARTS_OPT_u (1<<1)
73 #define RUN_PARTS_OPT_t (1<<2)
74 #if ENABLE_FEATURE_RUN_PARTS_FANCY
75 #define RUN_PARTS_OPT_l (1<<3)
78 #define test_mode (G.mode & RUN_PARTS_OPT_t)
79 #if ENABLE_FEATURE_RUN_PARTS_FANCY
80 #define list_mode (G.mode & RUN_PARTS_OPT_l)
84 static int act(const char *file, struct stat *statbuf, void *args, int depth)
92 ((!list_mode && access(file, X_OK)) ||
94 !(statbuf->st_mode & (S_IFREG | S_IFLNK))) )
97 if (test_mode || list_mode) {
101 G.cmd[0] = (char*)file;
102 ret = wait4pid(spawn(G.cmd));
104 bb_perror_msg("failed to exec %s", file);
105 } else if (ret > 0) {
106 bb_error_msg("%s exited with return code %d", file, ret);
111 int run_parts_main(int argc, char **argv);
112 int run_parts_main(int argc, char **argv)
115 llist_t *arg_list = NULL;
119 /* We require exactly one argument: the directory name */
120 opt_complementary = "=1:a::";
121 #if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS
122 applet_long_options = runparts_long_options;
124 tmp = getopt32(argc, argv, "a:u:t"USE_FEATURE_RUN_PARTS_FANCY("l"), &arg_list, &umask_p);
125 G.mode = tmp &~ (RUN_PARTS_OPT_a|RUN_PARTS_OPT_u);
126 if (tmp & RUN_PARTS_OPT_u) {
127 /* Check and set the umask of the program executed.
128 * As stated in the original run-parts, the octal conversion in
129 * libc is not foolproof; it will take the 8 and 9 digits under
130 * some circumstances. We'll just have to live with it.
132 umask(xstrtoul_range(umask_p, 8, 0, 07777));
134 for (tmp = 1; arg_list; arg_list = arg_list->link, tmp++)
135 G.cmd[tmp] = arg_list->data;
136 /* G.cmd[tmp] = NULL; - G is already zeroed out */
137 if (!recursive_action(argv[argc - 1],
138 ACTION_RECURSE|ACTION_FOLLOWLINKS,
139 act, /* file action */
140 act, /* dir action */
141 NULL, /* user data */